Put-Call Ratio (Volume) (150-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

GRAIL, Inc. (GRAL) had 150-Day Put-Call Ratio (Volume) of 0.2363 for 2026-07-20.

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Figures for 2026-07-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.7945
Historical Volatility (Parkinson)	0.7227
Implied Volatility (Calls)	0.8612
Implied Volatility (Puts)	0.8352
Implied Volatility (Mean)	0.8482
Put-Call Implied Volatility Ratio	0.9699
Implied Volatility Skew	0.0293
Option Statistics
Put-Call Ratio (Volume)	0.2363
Put-Call Ratio (Open Interest)	0.4253